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Fire detector and alarm system
| Details |
Inventors: Routman, Brent E.; Stults, Larry W.;
Assignee:
Primary Examiner: Swann; Glen
Assistant Examiner:
Attorney, Agent or Firm: Stults; Larry W.
A fire alarm system having recorded vocal warning messages and/or instructions is provided. The fire alarm system has a microphone by which a user can record a vocal message specifically suited for a small child or adult in need of verbal instructions. This allows the person hearing the warning message to respond correctly and quickly to a fire alarm. This recorded vocal message can be transmitted in combination with a fixed alarm signal in response to the detection of a fire condition. In a preferred embodiment a fire condition detector 10 is controlled by a CPU 65. Upon initial power-up, the combined watch-dog timer and power-on-reset circuitry 80 resets CPU 65 permitting it to execute machine instructions stored in ROM 95. User commands are issued via switch 75. The user speaks into microphone 25, which applies an audio signal to the microphone amplifier 125, which sends an analog signal to the analog-to-digital converter 130, which in rum sends a digital signal to CPU bus interface 135 for storage in RAM 90. CPU 65 monitors the output of fire condition detector means 10. Upon detection of a fire condition, detector means 10 activates the alarm state. CPU 65 then transfers the pre-recorded digital information from RAM 90 to the digital-to-analog CPU bus interface 40, which in turn provides a analog signal to amplifier 50, and ultimately loudspeaker 60. |
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DETAILED DESCRIPTION The present invention provides an improved fire detector and alarm having as all or part of its alarm signal a recorded vocal warning messages and/or instructions.
The fire alarm system of the present invention a microphone and recording means by which an end user, e.
g.
the parent of a small child, can record a vocal warning message specifically suited for a small child.
The present invention also encompasses means by which the recorded warning message can be transmitted in combination with a fixed alarm signal.
The transmission of the warning message and fixed alarm signal is activated by the detection of a fire condition in the vicinity of the fire condition detector.
More specifically, the present invention includes means for supplying electrical power, a fire condition detector, means for recording a vocal message, an alarm signal activated by a signal from the fire condition detector, and playback means for transmitting the recorded message as part of the alarm signal.
The fire condition detector and alarm of the present invention may optionally have a fixed alarm signal in addition to the recorded warning message.
Such an alarm signal would consist of both a fixed signal and the recorded warning message, which may be transmitted in an alternating and repeating manner.
A preferred fire alarm system of the present invention comprises a smoke detector that generates an activating signal: a microphone, analog to digital converter and RAM for recording a warning message: a ROM for storing and providing instruction to a processor that receives the activating signal from the smoke detector, which in turn provides the digitized warning message to a digital to analog converter, amplifier and loudspeaker for playback of the warning message.
It is an object of the present invention to provide a fire condition detector and alarm signal for home, day care and nursing home use that is effective for alerting small children and other adults of a fire condition in the local vicinity, wherein the alarm signal can easily understand and is likely to elicit a response from people, particularly small children
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Communications 
